Armstrong-Logo-011915-body.jpgTo meet the need for optimum efficiency and energy savings across all building loads, Armstrong Fluid Technology has announced that its Design Envelope pumps are now also available for use with single phase power up to 7.5 hp. Ideal for light commercial, residential and industrial applications using single phase power, the new pumps allow designers to choose the best pumping solution for their specific needs. The design envelope features include sensorless variable speed control, integration of pump and controller, space-saving vertical in-line design, and compliance with ASHRAE 90.1 energy efficiency guidelines.